Gas bond in detached garage ?

Hi Guys.

I carried out an EICR earlier and am a little unsure of the bonding setup.  House built in 1982. Original wiring which is ok. 16mm tails/6mm earth. 6mm bonding conductors. 60 amp main fuse.

The gas meter is in the detached garage. About 2 meters from house. There is a 6mm gas bond in there at the gas meter that is clearly under sized as it has been taken from the 2.5mm supply cable for the garage power.

The gas pipe from the meter goes through a 4inch duct and pops up in the kitchen below the units next to the water pipe. Both are bonded there in 6mm. This area backs onto the garage so in reality 2 or 3 meters away if that is relevant. 

My question is is the bond by the gas meter actually required as it is outside anyway or will it potentially need upgrading.

My gut reaction is it is fine as it is. There is no water in the garage.

The supply pipe to the gas meter drops into the concrete floor and as far as I can chip the floor away looks steel, although I am only seeing threading nut connections before it is buried so may well be plastic.

Any guidance would be appreciated

Thanks.  Gary

Parents
  • Yes best practice guide 4 Says if it is less than 6mm it should be coded as a C2. So implying an existing 6mm is OK. 16mm tails with a 6mm earth and 6mm bonding on a 60A fuse used to be pretty standard around here when I started in 1984.

    That doesn't solve the garage problem here mind :( 

    Gary

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  • Yes best practice guide 4 Says if it is less than 6mm it should be coded as a C2. So implying an existing 6mm is OK. 16mm tails with a 6mm earth and 6mm bonding on a 60A fuse used to be pretty standard around here when I started in 1984.

    That doesn't solve the garage problem here mind :( 

    Gary

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